“Every day I have that test. Everything I do,” President Biden said in his ABC News interview. “Not only am I campaigning, but I’m running the world.” By Zolan Kanno-Youngs President Biden said in an ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center sometimes employs cognitive interviewing to help improve ...

Former U.S. Ambassador to the United Nations Nikki Haley suggested in an interview on Thursday that leaders in the government who are of an advanced age should undergo a “cognitive test.” The ...

In his first televised interview since his widely criticized debate performance last week, President Joe Biden would not commit to taking a cognitive or neurological test and releasing the results.

Greater perceived neighborhood cohesion in childhood (measured at age 10) and at the time of the baseline interview (measured among people ranging in age from 51 to 89, or among people from late ...

President Biden did not calm his critics on Friday night following his interview with ABC News, fueling more calls for him to withdraw from the 2024 race and sparking fierce condemnation for refusing ...

EXCLUSIVE: Texas Republican Rep. Ronny Jackson, the former White House physician for Donald Trump, called on Democrats to follow through with their prior demands regarding a president’s cognitive ...

President Joe Biden would not commit to taking independent cognitive and neurological tests during his first television interview since last week's presidential debate. Biden, 81, sat down with ABC ...

During an interview set to air Thursday, former Vice President Joe Biden said that he had not taken a cognitive test and attacked the question as unfair, likening it to being asked if he was a “junkie ...

The president again tried to defend his own mental fitness for office — and disparage Joe Biden’s — by frequently repeating a memory sequence: “Person. Woman. Man. Camera. TV.” By Katie Rogers ...